2010-01-28_REVISION - C1982056

• Permit No: C1982056
• IBM Index Class Name: REVISION
• Doc Date: 1/28/2010
• Doc Name: Final Decision Letter
• From: DRMS
• To: Twentymile Coal Company
• Type & Sequence: TR71
• Email Name: JHB
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203 D O L O RA D O
D I V I S T O N O F
Phone: [phone] RECLAMATION
FAX: [phone] MINING
January 28, 2010 SAFETY
Bill Ritter, Jr.
Mr. William A. Bear Governor
Bowie Resources LLC Harris D. Sherman
P.O. Box 483 Executive Director
Paonia, Colorado 81428 Ronald W. Catt
Division Director
or
Natural Resource Trustee
RE: Bowie No. 2 Mine, Permit No. C-1996-083, Bowie Resources LLC
2009 Midterm Permit Review, Adequacy Review
Dear Mr. Bear:
The Division has reviewed Bowie Resources LLC's (BRL) responses to the 2009 Midterm adequacy
review for the Bowie No. 2 Mine. The following is the status of the issues:
The Division asked if the 3000 cubic yards of soil material that had been taken from the Hubbard
Creek vent shaft project and temporarily stored at the Bowie No. I Mine was still available for
reclamation at the Bowie No. 2 Hubbard Creek vent shaft site or had it been used in the Bowie
No. I Mine reclamation.
The Division has no further concerns. BRL responded in a letter dated October 26, 2009 that, of
the 3000 cubic yards of rock and soil that were taken from the site, 1140 cubic yards would be
returned to the Hubbard Creek vent shaft site for reclamation. There is an assumption being made
that this volume of material will be enough to achieve approximate original contour. However, the
success in achieving approximate original contour can only be made at the time of bond release.
The Division was concerned that the Freeman Gulch area landslide of June 2007 may have been
caused by outcrop barrier pillar failure due to mine induced subsidence. The Division requested
that BRL reexamine the issue of outcrop barrier pillars and whether more protection is needed.
The Division has no further concerns. BRL responded in a letter dated October 26, 2009 that the
initial roof fall on the east side of panel B-6 affected an area that was already predisposed to failure
due to historic subsidence from burnt B-seam and D-seam coal. It appears that no reasonable
amount of increased barrier pillar width would have prevented the landslide in this area.
3. The Division has re-evaluated the original 2009 Midterm reclamation cost estimate based on two
questions e-mailed to the Division on December 2, 2009 by Jim Stover, consultant for Bowie
Resources LLC.
Office of Office of
Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines